Type-writer attachment.



G. S. WATTS.

TYPE WRITER ATTACHMENT.

APPLICATION FILED APR. 21 1909.

Patented June 22, 1915.

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gvpiicatf'un filed April 1968 $1 T0 why/ 1,0121! it mm 00-210mm." 7

Be 1t i ciw'vvn that i, GEORGE 1512511102;

- men @5111 Type 16 foilmvil xis invention has re. nence to impmvb anew in typmvriter ati'aacmnents Andi relatess mm'a particularly to an attachmem my #2115 be umfl: of one u'oam tic nature such between the 216i ribbon car riar *x hergby the paper be; .1 W1 d i-f; ten upon 1s mmntarmed 1n close relz um m 0 he platen (if the t-ypewriting mm m in -11ch mmmer that the typmvriting may be e lowwizmmg ape? being held in pa.

van beyond. the lswenns invention will be dark mm Sivan-.2 canslilcmiuo 1 of the i I dascnptjmn 5a 11 connectlon with tn.

mountevi 11" pct] View as is w'ei upon. the t Imchme mchins thereis 21mm :1 cummemmlly as wan as a wing scale i'iui; so capital kev is mp0,? is; lifted,

is ribbon a: and 1101's as my 3-, a" eiga 011- may when 116 he is YG- low? 6. the lower a Wing scale is entirely 212mm 0f the e Jtruc'urc of JG to the type-- scales 001112110111 0 which this be used anti 355 ihe vs; consi e-z'abiy more ailment fanning the :scnt invention, the 1161031 on the machina ng is pmvideai with "\vizlgs 4.- W121}; ex 'mzdmg 1n one d1;

not only avoids the annoying condition above mentioned but may actually reduce the cost of manufacture so far as this par ticular part of the machine is concerned.

The graduations 8 on the upper straight edges of the wings l, enable them to serve the same purpose as the wing scale plates above referred to, viz, to position the paper on the platen (the upper edges of the taining the paper in proper relation thereto even though the lower edge of the paper be held only by the fingers -or projections 9,

- these projections normally covering the printing line on the platen and serving as extended fingers for holding the paper even after it leaves the upper margin of the wings 4 and 5 and therefore the lower edge of the paper cannot spring out because of its natural elasticity, when, during the operationof writing the lowermost line, the shift or capital key is depressed and the platen and paper is lifted so that the lower edge of the paper is above the wings 4: and 5. The fingers or projections 9, under these condi tions, exert a horizontal tensional etl'ect,that is they keep the'papers under tension and flat against the platen despite the tendency of the paper to spring out and away from the platen because of its inherent elasticity. Under these conditions when the key'is released and the platen is lowered the paper will keep or again return to its proper position with relation to these wings. It will be understood that in said Underwood machine the ribbon vibrator 1 rises and falls with the platen 3 when the latter is shifted up and down.

lhe out-turned ends 7 of the wings 4 and 5 i not only prevent interference with the paper upon which the typewriting is produced but also serve to guide the wings over and on top of the ordinary compressor arms or springs which are present in the typewriter for holding the paper firmly to the platen at the extremity of the writing zone.

In Fig. 2 the wings 4 and 5 are the same as shown in Fig. 1 and also the arms 6 are like those in Fig. 1, but these arms are continued and returned on themselves in the form of other arms 10 similar to the arms 6 and both the arms 6 and 10 are joined to-- gcther and to each other by a yoke 11 which may be in one piece with the said arms. The free ends of the arms 10 are formed with side extensions 12 having the outer ends curved to form elongated sockets 13 properly shaped to slip over the vertical post 14 on either side of and forming a part of the ribbon carrier of the ordinary Underwood machine, thus holding the attachment in place without making it a permanent part of the structure as in the form shown in Fig. 1. The ribbon maintains its normal position on the ribbon carrier while the attachment occupics the space between the normal ribbon carrier and the platen, both arms 6 and 10 of the structure shown in Fig. 2 occupying the position of the arm 6 of the structure shown in Fig. 1.

What is claimed is 1. In a typewriting machine, the combination with a ribbon carrier, a platen, of elastic wings adapted for light pressure against the platen fast on said ribbon carrier, each of said wings being provided on its upper edge with projecting fingers extending on each side the printing point over the printing line, in the direction of travel of the paper with the platen when the latter is moved about its longitudinal axis to cause line spacing of the paper, in order to keep said paper from springing from said platen.

'2. In a typewriter, the combination with a ribbon carrier of a typewriter, of wings adapted for light pressure against the platen .on either side of the type striking zone,

each wing having on its upper edge spaced fingers extending over a tensionally operative horizontal range, each side the printing point, said fingers projecting from said edge to keep paper from springing from said platen, and index marking between the fingers.

3. In a typewriting machine, the combination with a ribbon carrier of a typewriter machine, said ribbon carrier being provided with a space for the passage of the type, a platen, of wings adapted for light pressure against the platen mounted on said carrier and having a normal tendency toward the platen to hold paper against said platen,

said wings each being provided with upwardly projecting fingers extending over a tensionally operative horizontal range each side the printing point, one of said fingers being adjacent to the typewriting. zone.

4. In a typewriting machine, the combination with a ribbon carrier of the typewriter, a platen, of wings adapted for light pressurcagainst the platen on either, side of the striking zone of the type, said wings being each elastically mounted on the ribbon carrier and spaced apart at contiguous ends and each provided on the other end with index marking and spaced-fingers projecting in the direction of travel of the paper being printed, said fingers extending over a ten- In a typewriting machine, the combination of a platen, of a ribbon carrier providcd with opposite wings adapted for light pressure against the platen, each of said wings being in the form of a plate fast on one end to one of a pair of arms flanking the opening in the ribbon carrier, joined to the ribbon carrier, and arranged to keep work from springing from the "platen, said arms extending from a tensionally operative horizontal range each side the printing point.

6. In a typewriting machine, the combination with a platen, of a ribbon carrier having an opening therein, opposite wings adapted for light pressure against the platen extending each side of the opening, a pair otarms flanking the opening in the ribbon carrier, each of said wings being fast to one of said arms, each of said wings being joined at its lower end also to the ribbon carrier, said arms being made in one piece with said wings, and pointed projections extending upward from the wings across the line of print. a

7. In a typewriting machine, the combination with a platen, of a ribbon carrier provided with opposite wings adapted for light pressure against the platen, each of said wings being in the form of a plate fast on one end to one of a pair of arms arranged to hold Work close to the platen, said arms extending over an operative horizontal range each side of the printing point and flanking the opening in the ribbon carrier and at the lower end being joined to the ribbon carrier;'the plates between the contiguous ends of the wings being sufficient to prevent any interference with the ribbon when struck with the type.

8. In .a typewriting machine, the combination with a platen, of a ribbon carrier provided with opposite wings .each in the form of a plate fast-on one end to one of a pair of arms flanking the opening in the ribbon carrier, and at the lower end joined to the ribbon carrier; the space between the contiguous end of the wings being suflicient to prevent any interference with the ribbon when struck by the type; the outer-ends of the wings being out-turned and having scalemarks thereon, and pointed projections forming fingers to hold work against the platen extending up from the wings. a

9. In a typewriting machine, the combi-' nation with a-platen, of a ribbon carrier provided with opposite wings each in the form of a plate fast on one end to one of a pair of arms flanking the opening in the ribbon carrier, and at the lower end joined to the ribbon carrier; the space between the contiguous end of the wings being suificient to p event any interference with the ribbon when struck by the types; the outer ends of the wings being out-turned and having scale -Inarks thereon, and pointed projections eX- tending up from the wings; the arms formed With side extensions having outer ends bent to form elongated sockets properly shaped to slip over the vertical posts on either side of the ribbon carrier.

10. In a typewriting machine, the combination with a traveling platen and a ribbon vibrator having an opening through which the types strike, of scales upon each side of the said opening, adapted for light pressure against the platen, and extending along said platen, substantially as described.

11. In a typewriting machine, the combination with a platen and a ribbon-vibrator having an opening through which the types strike, of a paper-guiding finger or projection secured upon said ribbon-vibrator and projecting therefrom to cover the printing line, and serving as a guide for the lower edge of the paper as it turns or feeds around said platen. I

12. In a typewriting machine, the combination with a traveling platen and a vibrating ribbon carrier, of a scale plate mounted on said carrier so that the platen travels with relation to the same, and a paper guide projecting up from said scale plate to cover the printing line.

13. In a typewriting machine, the combination with a traveling platen and a, vibrating ribbon carrier, of a pair of paper-guiding' scale plates on said carrier, one upon each side of the printing point, each having a paper-guiding point projecting up to cover the printing line.

14. In a typewriting machine, the combination with a traveling platen and a vibrating ribbon carrier, of a pair of paperguiding scale plates on said carrier, one upon each side at the printing point, each having at suitable interval points projecting up to cover the printing line.

15. In a typewriting machine, the combination with a platen and a ribbon vibrator having an opening through which the types strike, of a pair of paper-guiding scale plates secured to said ribbon vibrator and having paper-guiding points projecting up to cover the printing line.

v 16. The combination with a shiftable platen and a ribbon vibrator shitting with. the platen, of resilient wings on said vibrator arranged to hold against said platen a work sheet.

17. The combination with a shiftable platen and a ribbon vibrator shifting with the platen, of resilient wings on said vibrator arranged to .hold against said platen a work sheet, and a finger on each wing extending.

across the printing line.

18. The combination with shiftable platen and a ribbon vibrator shitting with the platen, of a finger on. said vibrator arranged to extend across the-printing line to hold the paper in position whenever the edge of the paper approaches the printing line.

19. The combination v with a shiftablc platen and a vibrating ribbon carrier, of a paper guide plate on said carrier arranged to shift with said platen and hold paper close to the printing line, and a finger on .said plate extending across the printing line to hold said paper.

20. In a typewriting machine, the coinbination with a traveling platen, of a pair of paper guiding scale plates pressing lightly against said'platen, points extending upward from said plates to cover the printing line, one of said plates extending each side the printing point, the points aforesaid. being so spaced as to keep clear the printing point. i

21. In a typewriting machine, the combination With a traveling platen, of a pair of paper guiding plates pressing lightly against said platen, said plates extending over a tensionally operative horizontal range, each side the printing point, each having at intervals points projecting up overthe printing line, said points being in con.- tact with the paper and adapted to hold it stretched over the printing point.

22. In a typewriting machine, the combination with a traveling platen, of a pair of paper-guiding scale plates-pressing lightly .against said platenand extending over a tensionally operative horizontal range, one upon each side of the printing point, each having a point adjacent the printing point projecting up to cover the printing line, and

weasel another point spaced more than a letterspace from said point similarly covering said line; said points arranged to leave the letters on saidline open to be read and the space above said points being completely free of anything to interfere with seeing the matter which has been written.

23. A ribbon carrier comprising a split lower portion, a split upper portion, Wings extending laterally from said upper portion, and points extending from said wings to cover the printing line; said points being spaced so as not to interfere with the read ing of letters written onsaid line, and the space above said points being free of any thing to interfere with seeing the matter which has been written.

24. In a typewriting machine, the combination with a vibrating ribbon-carrier normally below the printing line, of a scale on said carrier adjacent said line adapted to indicate letter-spaces on said Written line.

25. In a typewriting machine, the combination with a vibrating ribbon-carrier normally resting below the ribbon line, of a scale on said carrier adjacent said written line, and resilient points spaced at intervals rising upwardly from said scale above the printing line.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

GEORGE SELDEN WATTS.

Witnesses:

J. G. COHEN, J. E. MAssnNr. 

